Answer to Define base level and distinguish between ultimate base level and temporary (local) base level..
Niger is a oily seed which makes it an excellent energy source for the birds that eat it. But its oily nature also causes it to dry out AND LOSE ITS ATTRACTIVENESS TO BIRDS.Birds will turn their beaks to old niger seed.Avoid waste by only purchasing niger in a quantity you'll use in a month or two.ou may also see it called NygerÂ®. 3) NIGER SEED HAS A SHELL. As small as it is, a niger seed does have a shell. If you think birds aren't eating the seed because you see some on the ground, examine it more closely: you may be seeing mostly the thin niger hulls.
Nyjer seed â also commonly known as niger or thistle seed â is popular with many backyard bird species.Knowing which birds eat Nyjer can help birders choose the best birdseed and appropriate feeders for their backyard flock.yjer is a small, black seed from the African yellow daisy (Guizotia abyssinica). High in oil, it is a nutritious source of energy for backyard birds and is one of the most popular types of birdseed.